Music-leaf turner



(No Model.) 2 SheetsShee*u 1.

H. HENOKLER & W. J. EIOKS.

MUSIC LEAF TURNER.

N0. 594 625. Patented Nov. 30, 1897.

(No Model.) 2 Sheets-Sheet 2.

H. HENGKLER & W. J. EIGKS. MUSIC LEAF TURNER.

No. 594,625. Patented Nov. 30,1897.

UNITED STATES PATENT FFICE.

HERMAN IIENOKLER AND WILLIAM J. EIOKS, OF ST. LOUIS, MISSOURI.

MUSIC-LEAF TURNER.

SPECIFICATION forming part of Letters Patent No. 594,625, dated November 30, 1897.

Application filed February 5, 1897. Serial No. 622,198. (No model.)

.To aZZ whom it may concern.-

Be it known that we, HERMAN HENOKLER and WILLIAM J. Erons, citizens of the United States, residing at the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Music-Leaf Turners, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

Our invention relates to a device for employment in turning sheets of music, the de vice being arranged to be supported in a suitable position convenient for a performer upon a musical instrument of any description. It is more particularly designed for employment in connection with a piano or similar instrument or violins.

Our invention consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, Figure I is a front elevation of ourimproved turner. Figs. II and III illustrate a cross-section, taken through the music sheet or book holding clamp, Fig. II showing the clamp closed and Fig. III showing it open for the insertion of the music sheet or book. Fig. IV is a detail front elevation of the leaf-turning-arms-operating mechanism. Figs. V and VI illustrate a section taken on line V VI, Fig. IV, Fig. V showing a portion of the leaf-carrying arms in tripped position and one of the arms in untripped position and Fig. VI showing all of the arms in untripped position. Figs. VII and VIII illustrate a vertical section taken 011 1 line VII VIII, Fig. IV, Fig. VII illustrating all of the leaf-carrying arms in untripped position and showing all'of the pawls of the leaf carrying arms in untripped position, the upper pawl being shown in process of tripping, and Fig. VIII showing only the lower pawl in untripped position. Fig. IX illustrates a vertical section, taken on line IX IX, Fig I, through the lower end of the clamp. Fig. X is a detail edge view of the outer end of one of the leaf-turning supporting-strips. Fig. XI is a detail view of the pawl-operating rod and its adj Listing-spring. Fig. XII is a detail edge view of the inner end of one of the turnersupporting strips and the bar to which it is connected. Fig. XIII is a detail side elevation of the pawl-operating trip rod and lever. Fig. XIV is a detail edge view of one of the pendent arms carried by the leaf-turning arms. Fig. XV is a perspective view of the sheet-retaining-arm pawl and a fragment of its supporting-arm, together with a fragment of its retaining-stop. Fig. XVI is an under perspective view of one of the spring-containing barrels, the pawl-carrying arm carried thereby, and the pawl pivoted to said arm.

In the drawings, 1 designates the back of the leaf-turnenon which the music-clamp and turning mechanism are mounted. Any suitable means of supporting the device may be employed; but for the purpose of attaching it to a piano or similar instrument we have shown a pair of straps designed to engage the music-holding rack of the instrument.

2 design ates the straps, which are conn ectod to a bar 3, attached to the back 1, the means of connection employed being a set-screw I, passed through slots 5 in the straps and entering said bar 3. This arrangement provides for the extension or contraction of the straps relative to the back 1 for the purpose of adapting the attachment of the device to music-racks of varying widths' The outer ends of the straps 2 are bent inwardly and receive rods 6, provided with knobs 7 and carrying on their inner ends cushioned plates 8, held forward by coiled springs 9, surrounding the rods 6. These plates engage the edges of the music-rack and are released from engagement by grasping the knobs 7 and drawing outward upon them.

10 designates spring-clips, each secured at one end to its strap 2 and having the free ends arranged to receive and hold the edges of the cover of a music-book.

11 designates a clamp for holding the music book or sheet by engaging its rear edges. This clamp is composed of members 12 and 12, one of which is provided with a fingerpiece 13. The rear edges of the members 12 and 12" are curved inward and outward and bear against pivot-studs 1% on the inner faces of brackets 15, mounted 011 the back 1. In-

termediate of the ends of the clamp 11 we provide the member 12 with a slotted lug 16 and the member 12 with a lug 17, provided with a pin 18, that operates in the slot of the lug 16. The free end of a spring 19, secured to the back 1, bears upon the lugs 16 and 17 and tends to depress them, and in so doing holds the outer edges of the clamp members together, in which position the clamp retains the book or sheet-music inserted in the clam p. To enable the insertion of the book or musicsheet, the finger-piece 13 is pressed inward and the lug 16 is moved outward, carrying with it the lug 17 and the members of the clamps pivoted on the studs 11, the spring 19 elosin g the clamp on the release of the finger piece 13. On the inner sides of the clamp members are stop-bars 20, that limit the eX- tent of insertion of the music sheet or book.

21 designates a plate removably mounted upon the upper end of the back 1 by means of socketpieces 22, that engage the edges of the back 1 and are held by spring-catches 23, that permit the withdrawal of the socketpieces. On the plate 21 is an upright 24, provided with recesses 25, that receive buffersprings 26. At the upper end of the upright 24c is an extension 27, provided with a slot 27, that receives the upper end of a trip-rod 28. The trip-rod 28 is pivotally connected at its lower end to an operating-lever 29, provided with a finger-plate 30 and pivoted to abracket 31, secured to the back 1. operates through the free end of a spring 32, secured to the back 1, and near its upper end it carries a prong 28. The outer end of the operating-lever 29 is held in an elevated position by a spring 33.

3 L designates stops on the inner face of the upright 2a. These stops are laterally offset from each other, each succeeding stop being located to the rear of a vertical line from the one next above it, and each stop is provided with a rear inclined face 35.

36 designates an arbor rigidly seated in the plate 21. On this arbor are mounted, one above another, a series of barrels 37, each containing a spring 38, one end of which is attached to the arbor and the other end at tached to the barrel. Each barrel 37 carries an arm 39, and each arm has a pendent arm 40 pivoted to its outer end. Each of the pendent arms 10 is provided with a spring-clip a1, composed of two plates, on the opposing faces of which are nibs 49, that engage the music-sheet to be turned. (See Fig. XIV.) On the barrels 37, approximately opposite the arms 39, are arms 43, and pivoted to these arms 43 are pawls at, whose rear ends rest in contact with the free ends of springs 15, secured to the arms 43. (See Figs. IV, XV, and XVI.) The pawls a l are arranged to ride over the inclines 35 of the stops 34-, and on passing the stops the springs 45 return them to normal position, when they engage the forward face of the stops and are held from movement until released by the movement of the trip-rod 28, as will appear in the reference to the operation of the device.

The trip-rod 28' 46 designates a case that incloses the springcontaining barrels 37 and the adjacent portions of the device. This case is provided with slots 17, in which the arms 39 operate.

In the operation of this device the leafturning arms 39 are placed in the position shown in Fig. I, and the pendent arm 4-0 of each arm 39 is connected to a music-sheet by means of the clip a1, the upper and longest arm 39 being connected with the outermost sheet and the other arms being connected with the successive sheets in order to the lowermost arm. With the arms in the position as specified the pawls 41 are held in engagement with the stops 31-, as illustrated in Fig. IV. New on depression of the operating-lever 29 by pressure upon the finger-plate 30 the trip-rod 28 is moved and the prong 28, coming in contact with the uppermost pawl -i, elevates the pawl against the action of its controlling-spring 4-5 and it is released from engagement with the stud The pawl becoming released within the uppermost barrel 37 causes the barrel to be turned, and the arm 39, carried by it, is swung to the opposite side of the device into the position illus trated in dotted lines in Fig. I, at the end of which movement the arm 39 comes in contact with its respective buffer-spring 20 and is stopped. After the uppermost pawl has been released the spring 32 carries the trip-rod 3S rearwardly in the slot 27 of the extension 27, where it is in position to engage with the succeeding pawl on the operation of the lever 29 and the tripping oi the succeeding pawl, the same as in the first instance. The same action proceeds until all of the arms 39 have been released, when the device may reccde by turning the arms back to their original position, in which action the pawls ride over the sto 3s 34; and engage therewith, as before mentioned.

Ive claim as our invention 1. In a leaf-turner, the combination of a support, spring-containing barrels mounted on said support, sheet-turning arms carried by said barrels, a support provided with stops, pawls carried by said barrels arranged to en gage said stops, and means for tripping said pawls, substantially as described.

2. In a leaf-turner, the combination of a support, spring-containing barrels mounted on said support, sheetturning arms carried by said barrels, a support provided with stops, said stops being provided with inclined rear faces, spring-controlled pawls carried by said barrels arranged to ride over said inclined faces and engage said stops, and means for tripping said pawls, substantially as described.

In a leaf-turner, the combination of a support, spring-containing barrels mounted on said support, sheet-turning arms carried by said barrels, a support provided with stops, springcontrelled pawls carried by said barrels, a trip-rod carrying a prong adapted to separately pivoted to said support, lugs arranged on the inner sides of said members opposing and contacting with each other, a spring arranged to hold said members together, one of said members being provided 20 with a finger-piece on the depression of which the lug carried by its member is caused to operate the opposing lug and cause the clamp members to be opened simultaneously, substantially as described.

HERMAN HENOKLER. \VM. J. EIOKS. In presence of- E. S. KNIGHT, N. FINLEY. 

